Camera optical lens

ABSTRACT

The present disclosure discloses a camera optical lens. The camera optical lens including, in an order from an object side to an image side, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens and a seventh lens. The camera optical lens further satisfies specific conditions.

FIELD OF THE PRESENT DISCLOSURE

The present disclosure relates to optical lens, in particular to acamera optical lens suitable for handheld devices such as smart phonesand digital cameras and imaging devices.

DESCRIPTION OF RELATED ART

With the emergence of smart phones in recent years, the demand forminiature camera lens is increasing day by day, but the photosensitivedevices of general camera lens are no other than Charge Coupled Device(CCD) or Complementary metal-Oxide Semiconductor Sensor (CMOS sensor),and as the progress of the semiconductor manufacturing technology makesthe pixel size of the photosensitive devices shrink, coupled with thecurrent development trend of electronic products being that theirfunctions should be better and their shape should be thin and small,miniature camera lens with good imaging quality therefor has become amainstream in the market. In order to obtain better imaging quality, thelens that is traditionally equipped in mobile phone cameras adopts athree-piece or four-piece lens structure. And, with the development oftechnology and the increase of the diverse demands of users, and underthis circumstances that the pixel area of photosensitive devices isshrinking steadily and the requirement of the system for the imagingquality is improving constantly, the five-piece, six-piece andseven-piece lens structure gradually appear in lens design. There is anurgent need for ultra-thin wide-angle camera lenses which have goodoptical characteristics and the chromatic aberration of which is fullycorrected.

BRIEF DESCRIPTION OF THE DRAWINGS

Many aspects of the exemplary embodiments can be better understood withreference to the following drawings. The components in the drawing arenot necessarily drawn to scale, the emphasis instead being placed uponclearly illustrating the principles of the present disclosure.

FIG. 1 is a schematic diagram of a camera optical lens in accordancewith a first embodiment of the present invention;

FIG. 2 shows the longitudinal aberration of the camera optical lensshown in FIG. 1;

FIG. 3 shows the lateral color of the camera optical lens shown in FIG.1;

FIG. 4 presents a schematic diagram of the field curvature anddistortion of the camera optical lens shown in FIG. 1;

FIG. 5 is a schematic diagram of a camera optical lens in accordancewith a second embodiment of the present invention;

FIG. 6 presents the longitudinal aberration of the camera optical lensshown in FIG. 5;

FIG. 7 presents the lateral color of the camera optical lens shown inFIG. 5;

FIG. 8 presents the field curvature and distortion of the camera opticallens shown in FIG. 5

FIG. 9 is a schematic diagram of a camera optical lens in accordancewith a third embodiment of the present invention;

FIG. 10 presents the longitudinal aberration of the camera optical lensshown in FIG. 9;

FIG. 11 presents the lateral color of the camera optical lens shown inFIG. 9;

FIG. 12 presents the field curvature and distortion of the cameraoptical lens shown in FIG. 9.

DETAILED DESCRIPTION OF THE EXEMPLARY EMBODIMENTS

The present disclosure will hereinafter be described in detail withreference to several exemplary embodiments. To make the technicalproblems to be solved, technical solutions and beneficial effects of thepresent disclosure more apparent, the present disclosure is described infurther detail together with the figure and the embodiments. It shouldbe understood the specific embodiments described hereby is only toexplain the disclosure, not intended to limit the disclosure.

Embodiment 1

As referring to FIG. 1, the present invention provides a camera opticallens 10. FIG. 1 shows the camera optical lens 10 of embodiment 1 of thepresent invention, the camera optical lens 10 comprises 7 lenses.Specifically, from the object side to the image side, the camera opticallens 10 comprises in sequence: an aperture S1, a first lens L1, a secondlens L2, a third lens L3, a fourth lens L4, a fifth lens L5, a sixthlens L6 and a seventh lens L7. Optical element like optical filter GFcan be arranged between the seventh lens L7 and the image surface Si.The first lens L1 is made of plastic material, the second lens L2 ismade of plastic material, the third lens L3 is made of plastic material,the fourth lens L4 is made of glass material, the fifth lens L5 is madeof plastic material, the sixth lens L6 is made of plastic material, theseventh lens L7 is made of plastic material;

Here, the focal length of the whole camera optical lens is defined as f,the focal length of the first lens L1 is defined as f1, the focal lengthof the third lens L3 is defined as f3, the focal length of the fourthlens L4 is defined as f4, the refractive power of the fourth lens L4 isdefined as n4, the thickness on-axis of the fourth lens L4 is defined asd7, the total optical length of the camera optical lens is defined asTTL, the curvature radius of the object side surface of the seventh lensL7 is defined as R13, the curvature radius of the image side surface ofthe seventh lens L7 is defined as R14. The f, f1, f3, f4, n4, d7, TTL,R13 and R14 satisfy the following conditions: 1.05≤f1/f≤1.5, 1.7≤n4≤2.2,−2≤f3/f4≤2; −10≤(R13+R14)/(R13−R14)≤10; 0.01≤d7/TTL≤0.1.

Condition 1.05≤f1/f≤1.5 fixes the positive refractive power of the firstlens L1. If the lower limit of the set value is exceeded, although itbenefits the ultra-thin development of lenses, but the positiverefractive power of the first lens L1 will be too strong, problem likeaberration is difficult to be corrected, and it is also unfavorable forwide-angle development of lens. On the contrary, if the higher limit ofthe set value is exceeded, the positive refractive power of the firstlens L1 becomes too weak, it is then difficult to develop ultra-thinlenses. Preferably, the following condition shall be satisfied,1.05≤f1/f≤1.2.

Condition 1.7≤n4≤2.2 fixes the refractive power of the fourth lens L4,refractive power within this range benefits the ultra-thin developmentof lenses, and it also benefits the correction of aberration.Preferably, the following condition shall be satisfied, 1.7≤n4≤1.9.

Condition −2≤f3/f4≤2 fixes the ratio between the focal length f3 of thethird lens L3 and the focal length f4 of the fourth lens L4, a ratiowithin this range can effectively reduce the sensitivity of lens groupused in camera and further enhance the imaging quality. Preferably, thefollowing condition shall be satisfied, −2≤f3/f4≤−0.5.

Condition −10≤(R13+R14)/(R13−R14)≤10 fixes the shape of the seventh lensL7, when the value is beyond this range, with the development into thedirection of ultra-thin and wide-angle lenses, problem like aberrationof the off-axis picture angle is difficult to be corrected. Preferably,the following condition shall be satisfied, −2≤(R13+R14)/(R13−R14)≤0.

Condition 0.01≤d7/TTL≤0.1 fixes the ratio between the thickness on-axisof the fourth lens L4 and the total optical length TTL of the cameraoptical lens 10, a ratio within this range benefits ultra-thindevelopment of lenses. Preferably, the following condition shall besatisfied, 0.04≤d7/TTL≤0.085.

When the focal length of the camera optical lens 10 of the presentinvention, the focal length of each lens, the refractive power of therelated lens, and the total optical length, the thickness on-axis andthe curvature radius of the camera optical lens satisfy the aboveconditions, the camera optical lens 10 has the advantage of highperformance and satisfies the design requirement of low TTL.

In this embodiment, the object side surface of the first lens L1 is aconvex surface relative to the proximal axis, its image side surface isa concave surface relative to the proximal axis, and it has positiverefractive power; the focal length of the whole camera optical lens isf, the focal length of the first lens L1 is f1, the curvature radius ofthe object side surface of the first lens L1 is R1, the curvature radiusof the image side surface of the first lens L1 is R2 and the thicknesson-axis of the first lens L1 is d1, they satisfy the followingcondition: −3.47≤(R1+R2)/(R1−R2)≤−1.04, this condition reasonablycontrols the shape of the first lens, then the first lens caneffectively correct the spherical aberration of the system; if thecondition 0.29≤d1≤1.03 is satisfied it is beneficial for the realizationof ultra-thin lens. Preferably, the following condition shall besatisfied, −2.17≤(R1+R2)/(R1−R2)≤−1.3; 0.47≤d1≤0.82.

In this embodiment, the object side surface of the second lens L2 is aconvex surface relative to the proximal axis, its image side surface isa concave surface relative to the proximal axis, and it has negativerefractive power; the focal length of the whole camera optical lens 10is f, the focal length of the second lens L2 is f2, the curvature radiusof the object side surface of the second lens L2 is R3, the curvatureradius of image side surface of the second lens L2 is R4 and thethickness on-axis of the second lens L2 is d3, they satisfy thefollowing condition: when the condition −9.00≤f2/f≤−2.31 is satisfied,the negative refractive power of the second lens L2 is controlled withinreasonable scope, the spherical aberration caused by the first lens L1which has positive refractive power and the field curvature of thesystem then can be reasonably and effectively balanced; the condition2.19≤(R3+R4)/(R3−R4)≤8.61 fixes the shape of the second lens L2, whenvalue is beyond this range, with the development into the direction ofultra-thin and wide-angle lenses, problem like on-axis chromaticaberration is difficult to be corrected; if the condition 0.11≤d3≤0.53is satisfied, it is beneficial for the realization of ultra-thin lenses.Preferably, the following conditions shall be satisfied,−5.63≤f2/f≤−2.89; 3.51≤(R3+R4)/(R3−R4)≤6.89; 0.18≤d3≤0.42.

In this embodiment, the object side surface of the third lens L3 is aconvex surface relative to the proximal axis, its image side surface isa concave surface relative to the proximal axis, and it has a negativerefractive power; the focal length of the whole camera optical lens 10is f, the focal length of the third lens L3 is f3, the curvature radiusof the object side surface of the third lens L3 is R5, the curvatureradius of the image side surface of the third lens L3 is R6 and thethickness on-axis of the third lens L3 is d5, they satisfy thecondition: −10.52≤f3/f≤−2.81, by satisfying this condition, it ishelpful for the system to obtain good ability in balancing the fieldcurvature, so that the image quality can be effectively improved; bysatisfying the condition −8.90≤(R5+R6)/(R5−R6)≤−2.27 the shape of thethird lens L3 can be effectively controlled, it is beneficial for theshaping of the third lens L3 and bad shaping and stress generation dueto extra large curvature of surface of the third lens 13 can be avoided;when the condition 0.10≤d5≤0.33 is satisfied, it is beneficial for therealization of ultra-thin lenses. Preferably, the following conditionsshall be satisfied, −6.58≤f3/f≤−3.51; −5.56≤(R5+R6)/(R5−R6)≤−2.84;0.17≤d5≤0.27.

In this embodiment, the object side surface of the fourth lens L4 is aconvex surface relative to the proximal axis, its image side surface isa concave surface relative to the proximal axis, and it has a positiverefractive power; the focal length of the whole camera optical lens 10is f, the focal length of the fourth lens L4 is f4, the curvature radiusof the object side surface of the fourth lens L4 is R7, the curvatureradius of the image side surface of the fourth lens L4 is R8 and thethickness on-axis of the fourth lens L4 is d7, they satisfy thecondition: 1.46≤f4/f≤4.49, the appropriate distribution of refractivepower makes it possible that the system has better imaging quality andlower sensitivity; the condition −3.87≤(R7+R8)/(R7−R8)≤−0.86 fixes theshape of the fourth lens L4, when beyond this range, with thedevelopment into the direction of ultra-thin and wide-angle lens, theproblem like chromatic aberration is difficult to be corrected; when thecondition 0.14≤d7≤0.67 is satisfied, it is beneficial for realization ofultra-thin lenses. Preferably, the following conditions shall besatisfied, 2.34≤f4/f≤3.60; −2.42≤(R7+R8)/(R7−R8)≤−1.07; 0.22≤d7≤0.54.

In this embodiment, the object side surface of the fifth lens L5 is aconcave surface relative to the proximal axis, its image side surface isa convex surface relative to the proximal axis, and it has positiverefractive power; the focal length of the whole camera optical lens 10is f, the focal length of the fifth lens L5 is f5, the curvature radiusof the object side surface of the fifth lens L5 is R9, the curvatureradius of the image side surface of the fifth lens L5 is R10 and thethickness on-axis of the fifth lens L5 is d9, they satisfy thecondition: 0.32≤f5/f≤0.97, the limitation on the fifth lens L5 caneffectively make the light angle of the camera lens flat and thetolerance sensitivity reduces; the condition 0.55≤(R9+R10)/(R9−R10)≤1.79fixes the shape of the fifth lens L5, when beyond this range, with thedevelopment into the direction of ultra-thin and wide-angle lens, theproblem like off-axis chromatic aberration is difficult to be corrected;when the condition 0.32≤d9≤1.17 is satisfied, it is beneficial for therealization of ultra-thin lens. Preferably, the following conditionsshall be satisfied, 0.51≤f5/f≤0.88≤(R9+R10)/(R9−R10)≤1.43; 0.52≤d9≤0.93.

In this embodiment, the object side surface of the sixth lens L6 is aconcave surface relative to the proximal axis, its image side surface isa convex surface relative to the proximal axis, and it has negativerefractive power; the focal length of the whole camera optical lens 10is f, the focal length of the sixth lens L6 is f6, the curvature radiusof the object side surface of the sixth lens L6 is R11, the curvatureradius of the image side surface of the sixth lens L6 is R12 and thethickness on-axis of the sixth lens L6 is d11, they satisfy thecondition: −10.72≤f6/f≤−2.45, the appropriate distribution of refractivepower makes it possible that the system has better imaging quality andlower sensitivity; the condition −6.98≤(R11+R12)/(R11−R12)≤−1.58 fixesthe shape of the sixth lens L6, when beyond this range, with thedevelopment into the direction of ultra-thin and wide-angle lenses, theproblem like off-axis chromatic aberration is difficult to be corrected;when the condition 0.20≤d11≤0.70, is satisfied, it is beneficial for therealization of ultra-thin lens. Preferably, the following conditionsshall be satisfied, −6.70 f6/f≤−3.07; −4.36≤(R11+R12)/(R11−R12)≤−1.97;0.32≤d11≤0.56.

In this embodiment, the object side surface of the seventh lens L7 is aconcave surface relative to the proximal axis, its image side surface isa convex surface relative to the proximal axis, and it has negativerefractive power; the focal length of the whole camera optical lens 10is f, the focal length of the seventh lens L7 is f7 and the thicknesson-axis of the seventh lens L7 is d13, they satisfy the conditions−1.19≤f7/f≤−0.39, appropriate distribution of refractive power makes itpossible that the system has better imaging quality and lowersensitivity; when the condition 0.15≤d13≤0.45 is satisfied, it isbeneficial for the realization of ultra-thin lens. Preferably, thefollowing conditions shall be satisfied, −0.75 f7/f≤−0.48;0.24≤d13≤0.36.

In this embodiment, the total optical length TTL of the camera opticallens 10 is less than or equal to 6.04 mm, it is beneficial for therealization of ultra-thin lenses. Preferably, the total optical lengthTTL of the camera optical lens 10 is less than or equal to 5.77.

In this embodiment, the aperture F number of the camera optical lens 10is less than or equal to 1.83. A large aperture has better imagingperformance. Preferably, the aperture F number of the camera opticallens 10 is less than or equal to 1.80.

With such design, the total optical length TTL of the whole cameraoptical lens 10 can be made as short as possible, thus theminiaturization characteristics can be maintained.

In the following, an example will be used to describe the camera opticallens 10 of the present invention. The symbols recorded in each exampleare as follows. The unit of distance, radius and center thickness is mm.

TTL: Optical length (the distance on-axis from the object side surfaceto the image side surface of the first lens L1).

Preferably, inflexion points and/or arrest points can also be arrangedon the object side surface and/or image side surface of the lens, sothat the demand for high quality imaging can be satisfied, thedescription below can be referred for specific implementable scheme.

The design information of the camera optical lens 10 in the firstembodiment of the present invention is shown in the following, the unitof the focal length, distance, radius and center thickness is mm.

The design information of the camera optical lens 10 in the firstembodiment of the present invention is shown in the tables 1 and 2.

TABLE 1 R d nd ν d S1 ∞ d0= −0.359 R1 1.915 d1= 0.687 nd1 1.5441 ν 156.12 R2 8.292 d2= 0.033 R3 5.206 d3= 0.227 nd2 1.6510 ν 2 21.51 R43.342 d4= 0.508 R5 −4.958 d5= 0.210 nd3 1.6422 ν 3 22.41 R6 −9.070 d6=0.033 R7 7.132 d7= 0.280 nd4 1.8468 ν 4 50.03 R8 22.349 d8= 0.602 R9−15.144 d9= 0.778 nd5 1.5352 ν 5 56.12 R10 −1.322 d10= 0.033 R11 −5.559d11= 0.400 nd6 1.5855 ν 6 29.91 R12 −10.027 d12= 0.382 R13 −2.963 d13=0.299 nd7 1.5352 ν 7 56.12 R14 2.299 d14= 0.500 R15 ∞ d15= 0.210 ndg1.5168 ν g 64.17 R16 ∞ d16= 0.190

In which, the meaning of the various symbols is as follows.

S1: Aperture;

R: The curvature radius of the optical surface, the central curvatureradius in case of lens;

R1: The curvature radius of the object side surface of the first lensL1;

R2: The curvature radius of the image side surface of the first lens L1;

R3: The curvature radius of the object side surface of the second lensL2;

R4: The curvature radius of the image side surface of the second lensL2;

R5: The curvature radius of the object side surface of the third lensL3;

R6: The curvature radius of the image side surface of the third lens L3;

R7: The curvature radius of the object side surface of the fourth lensL4;

R8: The curvature radius of the image side surface of the fourth lensL4;

R9: The curvature radius of the object side surface of the fifth lensL5;

R10: The curvature radius of the image side surface of the fifth lensL5;

R11: The curvature radius of the object side surface of the sixth lensL6;

R12: The curvature radius of the image side surface of the sixth lensL6;

R13: The curvature radius of the object side surface of the seventh lensL7;

R14: The curvature radius of the image side surface of the seventh lensL7;

R15: The curvature radius of the object side surface of the opticalfilter GF;

R16: The curvature radius of the image side surface of the opticalfilter GF;

d: The thickness on-axis of the lens and the distance on-axis betweenthe lens;

d0: The distance on-axis from aperture S1 to the object side surface ofthe first lens L1;

d1: The thickness on-axis of the first lens L1;

d2: The distance on-axis from the image side surface of the first lensL1 to the object side surface of the second lens L2;

d3: The thickness on-axis of the second lens L2;

d4: The distance on-axis from the image side surface of the second lensL2 to the object side surface of the third lens L3;

d5: The thickness on-axis of the third lens L3;

d6: The distance on-axis from the image side surface of the third lensL3 to the object side surface of the fourth lens L4;

d7: The thickness on-axis of the fourth lens L4;

d8: The distance on-axis from the image side surface of the fourth lensL4 to the object side surface of the fifth lens L5;

d9: The thickness on-axis of the fifth lens L5;

d10: The distance on-axis from the image side surface of the fifth lensL5 to the object side surface of the sixth lens L6;

d11: The thickness on-axis of the sixth lens L6;

d12: The distance on-axis from the image side surface of the sixth lensL6 to the object side surface of the seventh lens L7;

d13: The thickness on-axis of the seventh lens L7;

d14: The distance on-axis from the image side surface of the seventhlens L7 to the object side surface of the optical filter GF;

d15: The thickness on-axis of the optical filter GF;

d16: The distance on-axis from the image side surface to the imagesurface of the optical filter GF;

nd: The refractive power of the d line;

nd1: The refractive power of the d line of the first lens L1;

nd2: The refractive power of the d line of the second lens L2;

nd3: The refractive power of the d line of the third lens L3;

nd4: The refractive power of the d line of the fourth lens L4;

nd5: The refractive power of the d line of the fifth lens L5;

nd6: The refractive power of the d line of the sixth lens L6;

nd7: The refractive power of the d line of the seventh lens L7;

ndg: The refractive power of the d line of the optical filter GF;

vd: The abbe number;

v1: The abbe number of the first lens L1;

v2: The abbe number of the second lens L2;

v3: The abbe number of the third lens L3;

v4: The abbe number of the fourth lens L4;

v5: The abbe number of the fifth lens L5;

v6: The abbe number of the sixth lens L6;

v7: The abbe number of the seventh lens L7;

vg: The abbe number of the optical filter GF;

Table 2 shows the aspherical surface data of the camera optical lens 10in the embodiment 1 of the present invention.

TABLE 2 Conic Index Aspherical Surface Index k A4 A6 A8 A10 A12 A14 A16R1 −1.3135E−01  1.1174E−02 5.3674E−03 −1.9278E−03   1.2079E−03 1.5484E−03 4.3912E−04 −7.3001E−04  R2 −9.9997E+01 −4.0365E−03−1.5322E−03  4.5987E−03  3.1128E−04 −3.1235E−03 −6.5792E−04  9.2802E−04R3 −3.4270E+01 −2.6513E−02 −1.4725E−03  6.3218E−03 −1.8566E−03 1.9965E−03 4.2981E−05 3.3667E−04 R4 −4.7032E+00 −6.2052E−03−3.4146E−03  7.3302E−03  1.1016E−03 −9.2851E−04 −1.1556E−03  6.1566E−03R5  1.4745E+01  7.5077E−03 −4.2239E−02  −2.4683E−02   3.5036E−03 8.5488E−03 −2.3918E−03  1.2804E−03 R6  2.4721E+01 −7.4785E−03−3.4412E−02  −4.9872E−03   4.4136E−03  3.0872E−03 5.1351E−04−1.7365E−03  R7 −4.9986E+00 −6.7020E−02 1.1825E−02 4.2951E−03−1.6698E−04 −3.5982E−04 −4.6589E−05  1.3035E−05 R8  9.8686E+01−5.6117E−02 5.7465E−03 1.4179E−03 −1.7389E−04  1.3702E−04 2.0886E−041.4329E−05 R9 −1.0001E+02 −2.8086E−02 2.9819E−03 1.6598E−03 −1.1903E−03−9.5386E−05 3.3575E−05 1.5479E−07 R10 −3.3817E+00 −5.2101E−02 1.7946E−02−2.6702E−04  −1.9895E−04 −4.6710E−05 4.1952E−06 −2.6766E−06  R11 2.8016E+00 −1.2605E−02 2.3949E−04 5.4775E−05 −1.2211E−05 −1.2886E−069.4551E−07 3.7716E−07 R12 −3.7461E+01 −1.1857E−02 2.0528E−04 4.4212E−05 3.4180E−06 −1.0238E−06 −9.6006E−08  5.6795E−08 R13 −1.8882E−01 2.6597E−03 2.6156E−03 2.5111E−05 −1.5107E−05 −8.1786E−07 1.8088E−081.1967E−08 R14 −1.4107E+01 −2.2512E−02 3.5071E−03 −4.9303E−04  1.8850E−05  9.4375E−07 1.2375E−08 −5.3772E−09 

Among them, K is a conic index, A4, A6, A8, A10, A12, A14, a16 areaspheric surface indexes.

IH: Image heighty=(x ² /R)/[1+{1−(k+1)(x ² /R ²)}^(1/2)]+A4x ⁴ +A6x ⁶ +A8x ⁸ +A10x ¹⁰+A12x ¹² +A14x ¹⁴ +A16x ¹⁶  (1)

For convenience, the aspheric surface of each lens surface uses theaspheric surfaces shown in the above condition (1). However, the presentinvention is not limited to the aspherical polynomials form shown in thecondition (1).

Table 3 and table 4 show the inflexion points and the arrest pointdesign data of the camera optical lens 10 lens in embodiment 1 of thepresent invention. In which, R1 and R2 represent respectively the objectside surface and image side surface of the first lens L1, R3 and R4represent respectively the object side surface and image side surface ofthe second lens L2, R5 and R6 represent respectively the object sidesurface and image side surface of the third lens L3, R7 and R8 representrespectively the object side surface and image side surface of thefourth lens L4, R9 and R10 represent respectively the object sidesurface and image side surface of the fifth lens L5, R11 and R12represent respectively the object side surface and image side surface ofthe sixth lens L6, R13 and R14 represent respectively the object sidesurface and image side surface of the seventh lens L7. The data in thecolumn named “inflexion point position” are the vertical distances fromthe inflexion points arranged on each lens surface to the optic axis ofthe camera optical lens 10. The data in the column named “arrest pointposition” are the vertical distances from the arrest points arranged oneach lens surface to the optic axis of the camera optical lens 10.

TABLE 3 Inflexion point Inflexion point Inflexion point number position1 position 2 R1 R2 R3 R4 R5 R6 R7 R8 2 0.265 1.175 R9 R10 2 1.275 1.585R11 R12 1 2.155 R13 1 1.545 R14 1 0.745

TABLE 4 Arrest point number Arrest point position 1 Arrest pointposition 2 R1 R2 R3 R4 R5 R6 R7 R8 2 0.455 1.375 R9 R10 R11 R12 R13 12.625 R14 1 1.645

FIG. 2 and FIG. 3 show the longitudinal aberration and lateral colorschematic diagrams after light with a wavelength of 435.8, 486.1 nm,546.1 nm, 587.6 and 656.3 nm passes the camera optical lens 10 in thefirst embodiment. FIG. 4 shows the field curvature and distortionschematic diagrams after light with a wavelength of 546.1 nm passes thecamera optical lens 10 in the first embodiment, the field curvature S inFIG. 4 is a field curvature in the sagittal direction, T is a fieldcurvature in the meridian direction.

Table 13 shows the various values of the examples 1, 2, 3 and the valuescorresponding with the parameters which are already specified in theconditions.

As shown in Table 13, the first embodiment satisfies the variousconditions.

In this embodiment, the pupil entering diameter of the camera opticallens is 2.291 mm, the full vision field image height is 3.475 mm, thevision field angle in the diagonal direction is 79.95°, it haswide-angle and is ultra-thin, its on-axis and off-axis chromaticaberrations are fully corrected, and it has excellent opticalcharacteristics.

Embodiment 2

Embodiment 2 is basically the same as embodiment 1, the meaning of itssymbols is the same as that of embodiment 1, in the following, only thedifferences are described.

Table 5 and table 6 show the design data of the camera optical lens 20in embodiment 2 of the present invention.

TABLE 5 R d nd ν d S1 ∞ d0= −0.375 R1 1.998 d1= 0.596 nd1 1.5441 ν 156.12 R2 9.101 d2= 0.033 R3 5.116 d3= 0.325 nd2 1.6510 ν 2 21.51 R43.217 d4= 0.559 R5 −4.947 d5= 0.222 nd3 1.6422 ν 3 22.41 R6 −7.816 d6=0.033 R7 7.527 d7= 0.447 nd4 1.7183 ν 4 67.51 R8 60.470 d8= 0.519 R9−21.698 d9= 0.649 nd5 1.5352 ν 5 56.12 R10 −1.318 d10= 0.041 R11 −5.128d11= 0.448 nd6 1.5855 ν 6 29.91 R12 −12.619 d12= 0.359 R13 −2.914 d13=0.300 nd7 1.5352 ν 7 56.12 R14 2.420 d14= 0.500 R15 ∞ d15= 0.210 ndg1.5168 ν g 64.17 R16 ∞ d16= 0.200

Table 6 shows the aspherical surface data of each lens of the cameraoptical lens 20 in embodiment 2 of the present invention.

TABLE 6 Conic Index Aspherical Surface Index k A4 A6 A8 A10 A12 A14 A16R1 −1.7516E−01  8.9925E−03 8.1218E−03 −2.7584E−03  3.7379E−04 1.5970E−03 8.1469E−04 −7.1335E−04  R2 −9.9891E+01 −2.5681E−03−2.1510E−03  6.2694E−03 9.6733E−04 −4.0160E−03 −1.5158E−03  1.9369E−03R3 −2.4107E+01 −2.2231E−02 −5.6579E−04  3.1453E−03 −4.4188E−03  1.5084E−03 6.6329E−04 4.2455E−04 R4 −3.9771E+00 −5.2815E−03−6.8634E−03  4.2128E−03 −1.3875E−03  −3.1752E−03 −2.9619E−03  5.3380E−03R5  1.6417E+01 −3.1324E−03 −4.5453E−02  −2.6225E−02  1.5531E−04 5.0225E−03 −3.2907E−03  4.7880E−03 R6  2.7935E+01 −9.8707E−03−3.5530E−02  −5.5336E−03  5.3807E−03  4.6307E−03 1.5490E−03 −1.6419E−03 R7  2.7881E+00 −6.4856E−02 1.0700E−02 3.8566E−03 1.3140E−05 −7.7270E−058.9777E−05 7.5719E−06 R8 −1.0000E+02 −6.2228E−02 2.7031E−03 1.5497E−04−8.7254E−04  −1.8351E−04 1.8588E−04 1.4608E−04 R9 −6.5880E+01−3.4593E−02 1.5312E−03 1.4072E−03 −1.3479E−03  −1.5327E−04 4.0162E−051.7712E−05 R10 −3.3268E+00 −5.1546E−02 1.8999E−02 6.7281E−05−1.5358E−04  −5.3366E−05 −1.7899E−06  −4.4816E−06  R11  3.1302E+00−1.3245E−02 −3.4202E−04  3.1754E−05 7.2669E−06  3.8101E−06 1.0215E−063.0686E−08 R12 −4.3045E+01 −1.1535E−02 1.8528E−04 2.9227E−05 6.4149E−07−1.2239E−06 −6.3020E−08  7.5898E−08 R13 −2.0472E−01  2.6836E−032.6988E−03 3.7093E−05 −1.3649E−05  −6.9784E−07 2.0048E−08 9.9916E−09 R14−1.5250E+01 −2.3547E−02 3.5496E−03 −4.8169E−04  1.9655E−05  1.0064E−061.8030E−08 −4.3238E−09 

Tables 7 and 8 show the inflexion point and arrest point design data ofeach lens of the camera optical lens 20 in embodiment 2 of the presentinvention.

TABLE 7 Inflexion point Inflexion point Inflexion point number position1 position 2 R1 R2 R3 R4 R5 R6 R7 R8 2 0.155 1.285 R9 R10 2 1.185 1.595R11 R12 1 2.155 R13 1 1.525 R14 2 0.725 2.645

TABLE 8 Arrest point number Arrest point position 1 R1 R2 R3 R4 R5 R6 R7R8 1 0.255 R9 R10 R11 R12 R13 1 2.425 R14 1 1.585

FIG. 6 and FIG. 7 show the longitudinal aberration and lateral colorschematic diagrams after light with a wavelength of 435.8 nm, 486.1 nmand 546.1 nm, 587.6 and 656.8 passes the camera optical lens 20 in thesecond embodiment. FIG. 8 shows the field curvature and distortionschematic diagrams after light with a wavelength of 546.1 nm passes thecamera optical lens 20 in the second embodiment.

As shown in Table 13, the second embodiment satisfies the variousconditions.

In this embodiment, the pupil entering diameter of the camera opticallens is 2.286 mm, the full vision field image height is 3.475 mm, thevision field angle in the diagonal direction is 80.06°, it haswide-angle and is ultra-thin, its on-axis and off-axis chromaticaberrations are fully corrected, and it has excellent opticalcharacteristics.

Embodiment 3

Embodiment 3 is basically the same as embodiment 1, the meaning of itssymbols is the same as that of embodiment 1, in the following, only thedifferences are described.

The design information of the camera optical lens 10 in the thirdembodiment of the present invention is shown in the tables 9 and 10.

TABLE 9 R d nd ν d S1 ∞ d0= −0.372 R1 2.026 d1= 0.584 nd1 1.5441 ν 156.12 R2 7.544 d2= 0.034 R3 4.567 d3= 0.351 nd2 1.6510 ν 2 21.51 R43.212 d4= 0.575 R5 −4.940 d5= 0.209 nd3 1.6422 ν 3 22.41 R6 −8.656 d6=0.033 R7 7.933 d7= 0.438 nd4 1.7492 ν 4 50.00 R8 60.437 d8= 0.519 R9−27.084 d9= 0.666 nd5 1.5352 ν 5 56.12 R10 −1.332 d10= 0.043 R11 −5.278d11= 0.465 nd6 1.5855 ν 6 29.91 R12 −11.526 d12= 0.378 R13 −2.919 d13=0.300 nd7 1.5352 ν 7 56.12 R14 2.450 d14= 0.500 R15 ∞ d15= 0.210 ndg1.5168 ν g 64.17 R16 ∞ d16= 0.191

Table 10 shows the aspherical surface data of each lens of the cameraoptical lens 30 in embodiment 3 of the present invention.

TABLE 10 Conic Index Aspherical Surface Index k A4 A6 A8 A10 A12 A14 A16R1 −1.3904E−01  1.0070E−02 7.7631E−03 −2.7381E−03   4.5816E−04 1.6054E−03 7.7830E−04 −7.2742E−04  R2 −1.0000E+02 −2.9597E−03−2.1370E−03  5.8426E−03  7.2236E−04 −3.9305E−03 −1.3489E−03  1.8208E−03R3 −2.4324E+01 −2.2789E−02 −9.2919E−04  3.3265E−03 −4.4108E−03 1.2212E−03 4.1561E−04 6.7692E−04 R4 −3.9606E+00 −5.1295E−03−6.3569E−03  4.3048E−03 −1.0943E−03 −2.5978E−03 −2.4541E−03  5.2985E−03R5  1.6348E+01 −3.8053E−03 −4.4444E−02  −2.4665E−02   1.3272E−03 5.4971E−03 −3.5351E−03  3.9368E−03 R6  2.6592E+01 −8.8541E−03−3.5712E−02  −5.5070E−03   5.4781E−03  4.5956E−03 1.3659E−03−1.9112E−03  R7  3.9591E+00 −6.4490E−02 1.0752E−02 3.7018E−03−9.0235E−05 −1.1447E−04 8.2499E−05 8.9247E−06 R8  9.9898E+01 −6.2655E−022.7584E−03 2.7359E−04 −8.3184E−04 −1.9231E−04 1.6579E−04 1.3047E−04 R9−9.9668E+01 −3.3211E−02 2.1703E−03 1.4917E−03 −1.3377E−03 −1.5493E−043.7382E−05 1.5896E−05 R10 −3.3110E+00 −5.2136E−02 1.8857E−02 4.7265E−05−1.4295E−04 −4.6821E−05 1.3699E−07 −4.1665E−06  R11  2.9052E+00−1.2946E−02 −1.3576E−04  6.3230E−05  6.7698E−06  3.0368E−06 9.0518E−076.0175E−08 R12 −3.0660E+01 −1.1448E−02 2.3213E−04 3.7496E−05  1.7436E−06−1.1540E−06 −7.4493E−08  6.9796E−08 R13 −1.9579E−01  2.5060E−032.6783E−03 3.5203E−05 −1.3814E−05 −7.0859E−07 1.8773E−08 9.6939E−09 R14−1.4731E+01 −2.3404E−02 3.5732E−03 −4.8208E−04   1.9449E−05  9.6282E−071.1731E−08 −5.0715E−09 

Table 11 and table 12 show the inflexion points and the arrest pointdesign data of the camera optical lens 30 lens in embodiment 3 of thepresent invention.

TABLE 11 Inflexion Inflexion Inflexion point number point position 1point position 2 R1 R2 R3 R4 R5 R6 R7 R8 2 0.155 1.305 R9 R10 2 1.1951.625 R11 R12 1 2.135 R13 1 1.545 R14 1 0.735

TABLE 12 Arrest point number Arrest point position 1 R1 R2 R3 R4 R5 R6R7 R8 1 0.255 R9 R10 R11 R12 R13 1 2.425 R14 1 1.605

FIG. 10 and FIG. 11 show the longitudinal aberration and lateral colorschematic diagrams after light with a wavelength of 435.8 nm, 486.1 nm,546.1, 587.6 nm, and 656.3 nm passes the camera optical lens 30 in thethird embodiment. FIG. 12 shows the field curvature and distortionschematic diagrams after light with a wavelength of 546.1 nm passes thecamera optical lens 30 in the third embodiment.

The following table 13, in accordance with the above conditions, liststhe values in this embodiment corresponding with each conditionexpression. Apparently, the camera optical system of this embodimentsatisfies the above conditions.

In this embodiment, the pupil entering diameter of the camera opticallens is 2.2893 mm, the full vision field image height is 3.475 mm, thevision field angle in the diagonal direction is 80.00°, it haswide-angle and is ultra-thin, its on-axis and off-axis chromaticaberrations are fully corrected, and it has excellent opticalcharacteristics.

TABLE 13 Embodiment 1 Embodiment 2 Embodiment 3 f 4.078 4.070 4.075 f14.389 4.549 4.887 f2 −14.906 −14.123 −18.342 f3 −17.195 −21.414 −18.135f4 12.206 11.886 12.086 f5 2.644 2.582 2.582 f6 −21.864 −14.971 −16.966f7 −2.362 −2.412 −2.431 f3/f4 −1.409 −1.802 −1.500 (R1 + R2)/(R1 − R2)−1.600 −1.562 −1.734 (R3 + R4)/(R3 − R4) 4.586 4.387 5.743 (R5 + R6)/(R5− R6) −3.411 −4.448 −3.659 (R7 + R8)/(R7 − R8) −1.937 −1.284 −1.302(R9 + R10)/(R9 − R10) 1.191 1.129 1.103 (R11 + R12)/(R11 − R12) −3.488−2.369 −2.689 (R13 + R14)/(R13 − R14) 0.126 0.092 0.087 f1/f 1.076 1.1181.199 f2/f −3.655 −3.470 −4.501 f3/f −4.216 −5.261 −4.450 f4/f 2.9932.920 2.966 f5/f 0.648 0.635 0.634 f6/f −5.361 −3.678 −4.164 f7/f −0.579−0.593 −0.597 d1 0.687 0.596 0.584 d3 0.227 0.325 0.351 d5 0.210 0.2220.209 d7 0.280 0.447 0.438 d9 0.778 0.649 0.666 d11 0.400 0.448 0.465d13 0.299 0.300 0.300 Fno 1.780 1.780 1.780 TTL 5.370 5.440 5.495 d7/TTL0.052 0.082 0.080 n1 1.5441 1.5441 1.5441 n2 1.6510 1.6510 1.6510 n31.6422 1.6422 1.6422 n4 1.8468 1.7183 1.7492 n5 1.5352 1.5352 1.5352 n61.5855 1.5855 1.5855 n7 1.5352 1.5352 1.5352

It is to be understood, however, that even though numerouscharacteristics and advantages of the present exemplary embodiments havebeen set forth in the foregoing description, together with details ofthe structures and functions of the embodiments, the disclosure isillustrative only, and changes may be made in detail, especially inmatters of shape, size, and arrangement of parts within the principlesof the invention to the full extent indicated by the broad generalmeaning of the terms where the appended claims are expressed.

What is claimed is:
 1. A camera optical lens, comprising, from an objectside to an image side in sequence: a first lens, a second lens, a thirdlens, a fourth lens, a fifth lens, a sixth lens and a seventh lens;wherein the camera optical lens satisfies the following conditions:1.05≤f1/f≤1.5; 1.7≤n4≤2.2; −2≤f3/f4≤2; −10≤(R13+R14)/(R13−R14)≤10;0.01≤d7/TTL≤0.1; −9.00≤f2/f≤−2.31; where f: the focal length of thecamera optical lens, and the unit is mm; f1: the focal length of thefirst lens, and the unit is mm; f2: the focal length of the second lens,and the unit is mm; f3: the focal length of the third lens, and the unitis mm; f4: the focal length of the fourth lens, and the unit is mm; n4:the refractive power of the fourth lens; d7: the thickness on-axis ofthe fourth lens, and the unit is mm; TTL: the total optical length ofthe camera optical lens; R13: the curvature radius of object sidesurface of the seventh lens, and the unit is mm; R14: the curvatureradius of image side surface of the seventh lens, and the unit is mm. 2.The camera optical lens as described in claim 1, wherein the first lensis made of plastic material, the second lens is made of plasticmaterial, the third lens is made of plastic material, the fourth lens ismade of glass material, the fifth lens is made of plastic material, thesixth lens is made of plastic material, the seventh lens is made ofplastic material.
 3. The camera optical lens as described in claim 1,wherein the first lens has a positive refractive power with a convexobject side surface and concave image side surface; the camera opticallens further satisfies the following conditions:−3.47≤(R1+R2)/(R1−R2≤−1.04; 0.29≤d1≤1.03; where R1: the curvature radiusof the object side surface of the first lens, and the unit is mm; R2:the curvature radius of the image side surface of the first lens, andthe unit is mm; d1: the thickness on-axis of the first lens, and theunit is mm.
 4. The camera optical lens as described in claim 1, whereinthe second lens has a negative refractive power and includes a convexobject side surface and a concave image side surface; the camera opticallens further satisfies the following conditions:2.19≤(R3+R4)/(R3−R4)≤8.61; 0.11≤d3≤0.53; where R3: the curvature radiusof the object side surface of the second lens, and the unit is mm; R4:the curvature radius of the image side surface of the second lens, andthe unit is mm; d3: the thickness on-axis of the second lens, and theunit is mm.
 5. The camera optical lens as described in claim 1, whereinthe third lens has a negative refractive power with a concave objectside surface and a convex image side surface; the camera optical lensfurther satisfies the following conditions: −10.52≤f3/f≤−2.81;−8.90≤(R5+R6)/(R5−R6)≤−2.27; 0.10≤d5≤0.33; where f: the focal length ofthe camera optical lens, and the unit is mm; f3: the focal length of thethird lens, and the unit is mm; R5: the curvature radius of the objectside surface of the third lens, and the unit is mm; R6: the curvatureradius of the image side surface of the third lens, and the unit is mm;d5: the thickness on-axis of the third lens, and the unit is mm.
 6. Thecamera optical lens as described in claim 1, wherein the fourth lens hasa positive refractive power and includes a convex object side surfaceand a concave image side surface, and the camera optical lens furthersatisfies the following conditions: 1.46≤f4/f≤4.49;−3.87≤(R7+R8)/(R7−R8)≤−0.86; 0.14≤d7≤0.67; where f: the focal length ofthe camera optical lens, and the unit is mm; f4: the focal length of thefourth lens, and the unit is mm; R7: the curvature radius of the objectside surface of the fourth lens, and the unit is mm; R8: the curvatureradius of the image side surface of the fourth lens, and the unit is mm;d7: the thickness on-axis of the fourth lens, and the unit is mm.
 7. Thecamera optical lens as described in claim 1, wherein the fifth lens hasa positive refractive power with a concave object side surface and aconvex image side surface; and the camera optical lens further satisfiesthe following conditions: 0.32≤f5/f≤0.97; 0.55≤(R9+R10)/(R9−R10)≤1.79;0.32≤d9≤1.17; where f: the focal length of the camera optical lens, andthe unit is mm; f5: the focal length of the fifth lens, and the unit ismm; R9: the curvature radius of the object side surface of the fifthlens, and the unit is mm; R10: the curvature radius of the image sidesurface of the fifth lens, and the unit is mm; d9: the thickness on-axisof the fifth lens, and the unit is mm.
 8. The camera optical lens asdescribed in claim 1, wherein the sixth lens has a negative refractivepower with a concave object side surface and a convex image sidesurface; and the camera optical lens further satisfies the followingconditions: −10.72≤f6/f≤−2.45; −6.98≤(R11+R12)/(R11−R12)≤−1.58;0.20≤d11≤0.70; where f: the focal length of the camera optical lens, andthe unit is mm; f6: the focal length of the sixth lens, and the unit ismm; R11: the curvature radius of the object side surface of the sixthlens, and the unit is mm; R12: the curvature radius of the image sidesurface of the sixth lens, and the unit is mm; d11: the thicknesson-axis of the sixth lens, and the unit is mm.
 9. The camera opticallens as described in claim 1, wherein the seventh lens has a negativerefractive power with a concave object side surface and a concave imageside surface; the camera optical lens further satisfies the followingconditions: −1.19≤f4/f≤−0.39; 0.15≤d13≤0.45; where f: the focal lengthof the camera optical lens, and the unit is mm; f7: the focal length ofthe seventh lens, and the unit is mm; d13: the thickness on-axis of theseventh lens, and the unit is mm.
 10. The camera optical lens asdescribed in claim 1, wherein a total optical length TTL of the cameraoptical lens is less than or equal to 6.04 millimeters.
 11. The cameraoptical lens as described in claim 1, wherein an aperture F number ofthe camera optical lens is less than or equal to 1.83.